Carton blank



FIG. 1 is a top plan view of a carton blank showing my new design, the bottom view being identical;

FG. 2 is a top edge view of the blank shown in FIG. 1;

FIG. 3 is a right edge view of the blank shown in FIG. 1, the left edge view being a mirror image;

FIG. 4 is a bottom edge view of the blank as shown in FIG. 1; and,

FIG. 5 is a perspective view of the carton blank, once constructed in three dimensions. 

The ornamental design for a carton blank, as shown and described. 